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abseil has failed to build on GNU/Hurd for a long time. Now
let's make it work! :)
Note that `__GNU__` is the macro for detecting GNU/Hurd. And
`__MACH__` is also defined there besides on Apple platform.
They are both "mach" but with different implementation and
platform details. Here are the works,
* Mark platform features (not) supported by GNU/Hurd.
* Supports `mmap` and `write`.
* Not supports `vdso`. It's specific to Linux.
* Not supports `ELF_SYMBOLIZE` for now. GNU/Hurd uses ELF as
the binary format. But symbolizing in abseil relies on
reading object file path from `/proc/self/task/<pid>/maps`
(Linux specific) or `/proc/self/maps`. GNU/Hurd does have
the latter. However, due to its micro-kernel design, it's
currently unable to get the file path info there.
* Disable stack consumption measurement. The problem behind
it is that GNU/Hurd uses a very different way to implement
signal handling. Due to compiler behavior, it is
impossible to get a stable, valid and reliable statictic
data. In my test environment, it's 96 bytes (< 100) for
current codes.
* GNU/Hurd uses different errno and messages than Linux. So
related things are adjusted accordingly.
* Fix a misuse of `__MACH__`, which should actually be
`__APPLE__`.
* Fix a missing including of `signal.h` for using `SIGABRT`.
Otherwise compilation will fail with undefined symbol error
on GNU/Hurd.
Signed-off-by: Yuqian Yang <crupest@crupest.life>
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--
0b13723ab1ca5231950c3ef76e57c415ce36d9d2 by Abseil Team <absl-team@google.com>:
Fix documentation typo
PiperOrigin-RevId: 348003868
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2ad4875258ffd604b19f57d7cfbb9f9a093ff880 by Derek Mauro <dmauro@google.com>:
Add missing #include <assert.h>
Note: This file is sometimes used from C so we can't use <cassert>
PiperOrigin-RevId: 347931562
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4d0c777a3645bddea9d0d6c49ec8ef3afea8c0b7 by Chris Kennelly <ckennelly@google.com>:
Use unsigned types for BitMask helper functions.
Additionally, explicitly perform narrowing cast. T will always have fewer than
2^32 bits.
PiperOrigin-RevId: 347913413
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80c44b0b066485a25baff56d475b67be2ad027e7 by Abseil Team <absl-team@google.com>:
Stash errno for a larger scope.
Also adjust the test to account for EXPECT_* possibly modifying errno as well.
PiperOrigin-RevId: 347899763
GitOrigin-RevId: 0b13723ab1ca5231950c3ef76e57c415ce36d9d2
Change-Id: I9e7c0e5d45ac778644f3ad72d215378a8cf8a7d4
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--
a85860e450815776c8753f34348f41ab0e918d36 by Gennadiy Rozental <rogeeff@google.com>:
Rename ComamndLineFlag's interface SetFromString as ParseFrom.
This is the name approved by C++ API review.
PiperOrigin-RevId: 301543521
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28f31bae2a136854fd89f0a32f281d12a40f702c by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 301524919
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a68da3d6fbbca4c5f41a20e99ed72bb1c5dd1165 by Abseil Team <absl-team@google.com>:
Introduce absl::base_internal::StrError, a portability wrapper around the various thread-safe alternatives to C89's strerror.
PiperOrigin-RevId: 301513962
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92ccac3b6eb18cb41cddedbfdab53b9ad481505d by Andy Getzendanner <durandal@google.com>:
Introduce absl::base_internal::StrError, a portability wrapper around the various thread-safe alternatives to C89's strerror.
PiperOrigin-RevId: 301493389
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8e196def47c250941202840d6a1de686d681cd3e by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 301363394
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dd1dcffa6c47675ba4d198730a301bd408142298 by Gennadiy Rozental <rogeeff@google.com>:
Add validation for size of void* to match the size of free function pointer.
PiperOrigin-RevId: 301341331
GitOrigin-RevId: a85860e450815776c8753f34348f41ab0e918d36
Change-Id: I27c9d1365d3c9b4328d1587ab3ac38e2d09a6ec2
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